一起特殊负荷性质引起的电能计量装置接线异常误判案例  

A Case of Abnormal Wiring Miscalculation of Electric Energy Metering Device Caused by Special Load Property

作　　者：王壮 秦立瑛 童格格 WANG zhuang;QIN liying;TONG gege(State Grid Yangzhou Power Supply Company,Jiangsu Yangzhou 225000,China)

机构地区：[1]国网江苏省电力有限公司扬州供电分公司,江苏扬州225000

出　　处：《农村电气化》2024年第2期88-91,共4页Rural Electrification

摘　　要：在某些特殊负荷性质下,电压电流的相量特征将发生变化,偏离常规的正确接线相量特征,甚至趋近于某些典型的错误接线相量图特征,容易被误判为接线错误。文章通过分析一起特殊负荷性质引起的电能计量装置接线异常误判案例,研究中频炉类特殊负荷影响下计量装置接线相量图的图形特点与发生原理,避免计量人员发生接线异常误判,提高接线检查工作效率。Under certain special load properties,the phasor characteristics of voltage and current will change,deviating from the correct wiring phasor characteristics,and even approaching the characteristics of some typical miswired phasor diagrams,which are easily misjudged as miswiring.This article analyzes a case of misjudged wiring anomaly caused by a special load property in an electric energy metering device,and studies the graphical characteristics and occurrence mechanism of the metering device wiring phasor diagram under the influence of special loads of intermediate frequency furnaces,to avoid misjudgment of wiring anomaly by metrology personnel and improve the efficiency of wiring inspection.

关 键 词：电能计量 接线异常 特殊负荷 用电信息 

分 类 号：TM764[电气工程—电力系统及自动化]